decaffeinate: Convert run.coffee to JS

This commit is contained in:
decaffeinate 2020-05-06 12:12:55 +02:00 committed by Tim Alby
parent b6cc463a1e
commit 3b6c0d8ca6

View file

@ -1,209 +1,284 @@
DocUpdaterClient = require "../../acceptance/coffee/helpers/DocUpdaterClient"
# MockTrackChangesApi = require "../../acceptance/js/helpers/MockTrackChangesApi"
# MockWebApi = require "../../acceptance/js/helpers/MockWebApi"
assert = require "assert"
async = require "async"
/*
* decaffeinate suggestions:
* DS101: Remove unnecessary use of Array.from
* DS102: Remove unnecessary code created because of implicit returns
* DS202: Simplify dynamic range loops
* DS205: Consider reworking code to avoid use of IIFEs
* DS207: Consider shorter variations of null checks
* Full docs: https://github.com/decaffeinate/decaffeinate/blob/master/docs/suggestions.md
*/
const DocUpdaterClient = require("../../acceptance/coffee/helpers/DocUpdaterClient");
// MockTrackChangesApi = require "../../acceptance/js/helpers/MockTrackChangesApi"
// MockWebApi = require "../../acceptance/js/helpers/MockWebApi"
const assert = require("assert");
const async = require("async");
insert = (string, pos, content) ->
result = string.slice(0, pos) + content + string.slice(pos)
return result
const insert = function(string, pos, content) {
const result = string.slice(0, pos) + content + string.slice(pos);
return result;
};
transform = (op1, op2) ->
if op2.p < op1.p
const transform = function(op1, op2) {
if (op2.p < op1.p) {
return {
p: op1.p + op2.i.length
p: op1.p + op2.i.length,
i: op1.i
}
else
return op1
};
} else {
return op1;
}
};
class StressTestClient
constructor: (@options = {}) ->
@options.updateDelay ?= 200
@project_id = @options.project_id or DocUpdaterClient.randomId()
@doc_id = @options.doc_id or DocUpdaterClient.randomId()
@pos = @options.pos or 0
@content = @options.content or ""
class StressTestClient {
constructor(options) {
if (options == null) { options = {}; }
this.options = options;
if (this.options.updateDelay == null) { this.options.updateDelay = 200; }
this.project_id = this.options.project_id || DocUpdaterClient.randomId();
this.doc_id = this.options.doc_id || DocUpdaterClient.randomId();
this.pos = this.options.pos || 0;
this.content = this.options.content || "";
@client_id = DocUpdaterClient.randomId()
@version = @options.version or 0
@inflight_op = null
@charCode = 0
this.client_id = DocUpdaterClient.randomId();
this.version = this.options.version || 0;
this.inflight_op = null;
this.charCode = 0;
@counts = {
conflicts: 0
local_updates: 0
remote_updates: 0
this.counts = {
conflicts: 0,
local_updates: 0,
remote_updates: 0,
max_delay: 0
}
};
DocUpdaterClient.subscribeToAppliedOps (channel, update) =>
update = JSON.parse(update)
if update.error?
console.error new Error("Error from server: '#{update.error}'")
return
if update.doc_id == @doc_id
@processReply(update)
sendUpdate: () ->
data = String.fromCharCode(65 + @charCode++ % 26)
@content = insert(@content, @pos, data)
@inflight_op = {
i: data
p: @pos++
}
@resendUpdate()
@inflight_op_sent = Date.now()
resendUpdate: () ->
assert(@inflight_op?)
DocUpdaterClient.sendUpdate(
@project_id, @doc_id
{
doc: @doc_id
op: [@inflight_op]
v: @version
meta:
source: @client_id
dupIfSource: [@client_id]
DocUpdaterClient.subscribeToAppliedOps((channel, update) => {
update = JSON.parse(update);
if (update.error != null) {
console.error(new Error(`Error from server: '${update.error}'`));
return;
}
)
@update_timer = setTimeout () =>
console.log "[#{new Date()}] \t[#{@client_id.slice(0,4)}] WARN: Resending update after 5 seconds"
@resendUpdate()
, 5000
if (update.doc_id === this.doc_id) {
return this.processReply(update);
}
});
}
processReply: (update) ->
if update.op.v != @version
if update.op.v < @version
console.log "[#{new Date()}] \t[#{@client_id.slice(0,4)}] WARN: Duplicate ack (already seen version)"
return
else
console.error "[#{new Date()}] \t[#{@client_id.slice(0,4)}] ERROR: Version jumped ahead (client: #{@version}, op: #{update.op.v})"
@version++
if update.op.meta.source == @client_id
if @inflight_op?
@counts.local_updates++
@inflight_op = null
clearTimeout @update_timer
delay = Date.now() - @inflight_op_sent
@counts.max_delay = Math.max(@counts.max_delay, delay)
@continue()
else
console.log "[#{new Date()}] \t[#{@client_id.slice(0,4)}] WARN: Duplicate ack"
else
assert(update.op.op.length == 1)
@counts.remote_updates++
external_op = update.op.op[0]
if @inflight_op?
@counts.conflicts++
@inflight_op = transform(@inflight_op, external_op)
external_op = transform(external_op, @inflight_op)
if external_op.p < @pos
@pos += external_op.i.length
@content = insert(@content, external_op.p, external_op.i)
sendUpdate() {
const data = String.fromCharCode(65 + (this.charCode++ % 26));
this.content = insert(this.content, this.pos, data);
this.inflight_op = {
i: data,
p: this.pos++
};
this.resendUpdate();
return this.inflight_op_sent = Date.now();
}
continue: () ->
if @updateCount > 0
@updateCount--
setTimeout () =>
@sendUpdate()
, @options.updateDelay * ( 0.5 + Math.random() )
else
@updateCallback()
runForNUpdates: (n, callback = (error) ->) ->
@updateCallback = callback
@updateCount = n
@continue()
check: (callback = (error) ->) ->
DocUpdaterClient.getDoc @project_id, @doc_id, (error, res, body) =>
throw error if error?
if !body.lines?
return console.error "[#{new Date()}] \t[#{@client_id.slice(0,4)}] ERROR: Invalid response from get doc (#{doc_id})", body
content = body.lines.join("\n")
version = body.version
if content != @content
if version == @version
console.error "[#{new Date()}] \t[#{@client_id.slice(0,4)}] Error: Client content does not match server."
console.error "Server: #{content.split('a')}"
console.error "Client: #{@content.split('a')}"
else
console.error "[#{new Date()}] \t[#{@client_id.slice(0,4)}] Error: Version mismatch (Server: '#{version}', Client: '#{@version}')"
if !@isContentValid(@content)
for chunk, i in @content.split("")
if chunk? and chunk != "a"
console.log chunk, i
throw new Error("bad content")
callback()
isChunkValid: (chunk) ->
char = 0
for letter, i in chunk
if letter.charCodeAt(0) != 65 + i % 26
console.error "[#{new Date()}] \t[#{@client_id.slice(0,4)}] Invalid Chunk:", chunk
return false
return true
isContentValid: (content) ->
for chunk in content.split('a')
if chunk? and chunk != ""
if !@isChunkValid(chunk)
console.error "[#{new Date()}] \t[#{@client_id.slice(0,4)}] Invalid content", content
return false
return true
checkDocument = (project_id, doc_id, clients, callback = (error) ->) ->
jobs = clients.map (client) ->
(cb) -> client.check cb
async.parallel jobs, callback
printSummary = (doc_id, clients) ->
slot = require('cluster-key-slot')
now = new Date()
console.log "[#{now}] [#{doc_id.slice(0,4)} (slot: #{slot(doc_id)})] #{clients.length} clients..."
for client in clients
console.log "[#{now}] \t[#{client.client_id.slice(0,4)}] { local: #{client.counts.local_updates }, remote: #{client.counts.remote_updates}, conflicts: #{client.counts.conflicts}, max_delay: #{client.counts.max_delay} }"
client.counts = {
local_updates: 0
remote_updates: 0
conflicts: 0
max_delay: 0
resendUpdate() {
assert(this.inflight_op != null);
DocUpdaterClient.sendUpdate(
this.project_id, this.doc_id,
{
doc: this.doc_id,
op: [this.inflight_op],
v: this.version,
meta: {
source: this.client_id
},
dupIfSource: [this.client_id]
}
);
return this.update_timer = setTimeout(() => {
console.log(`[${new Date()}] \t[${this.client_id.slice(0,4)}] WARN: Resending update after 5 seconds`);
return this.resendUpdate();
}
, 5000);
}
processReply(update) {
if (update.op.v !== this.version) {
if (update.op.v < this.version) {
console.log(`[${new Date()}] \t[${this.client_id.slice(0,4)}] WARN: Duplicate ack (already seen version)`);
return;
} else {
console.error(`[${new Date()}] \t[${this.client_id.slice(0,4)}] ERROR: Version jumped ahead (client: ${this.version}, op: ${update.op.v})`);
}
}
this.version++;
if (update.op.meta.source === this.client_id) {
if (this.inflight_op != null) {
this.counts.local_updates++;
this.inflight_op = null;
clearTimeout(this.update_timer);
const delay = Date.now() - this.inflight_op_sent;
this.counts.max_delay = Math.max(this.counts.max_delay, delay);
return this.continue();
} else {
return console.log(`[${new Date()}] \t[${this.client_id.slice(0,4)}] WARN: Duplicate ack`);
}
} else {
assert(update.op.op.length === 1);
this.counts.remote_updates++;
let external_op = update.op.op[0];
if (this.inflight_op != null) {
this.counts.conflicts++;
this.inflight_op = transform(this.inflight_op, external_op);
external_op = transform(external_op, this.inflight_op);
}
if (external_op.p < this.pos) {
this.pos += external_op.i.length;
}
return this.content = insert(this.content, external_op.p, external_op.i);
}
}
continue() {
if (this.updateCount > 0) {
this.updateCount--;
return setTimeout(() => {
return this.sendUpdate();
}
, this.options.updateDelay * ( 0.5 + Math.random() ));
} else {
return this.updateCallback();
}
}
runForNUpdates(n, callback) {
if (callback == null) { callback = function(error) {}; }
this.updateCallback = callback;
this.updateCount = n;
return this.continue();
}
check(callback) {
if (callback == null) { callback = function(error) {}; }
return DocUpdaterClient.getDoc(this.project_id, this.doc_id, (error, res, body) => {
if (error != null) { throw error; }
if ((body.lines == null)) {
return console.error(`[${new Date()}] \t[${this.client_id.slice(0,4)}] ERROR: Invalid response from get doc (${doc_id})`, body);
}
const content = body.lines.join("\n");
const {
version
} = body;
if (content !== this.content) {
if (version === this.version) {
console.error(`[${new Date()}] \t[${this.client_id.slice(0,4)}] Error: Client content does not match server.`);
console.error(`Server: ${content.split('a')}`);
console.error(`Client: ${this.content.split('a')}`);
} else {
console.error(`[${new Date()}] \t[${this.client_id.slice(0,4)}] Error: Version mismatch (Server: '${version}', Client: '${this.version}')`);
}
}
CLIENT_COUNT = parseInt(process.argv[2], 10)
UPDATE_DELAY = parseInt(process.argv[3], 10)
SAMPLE_INTERVAL = parseInt(process.argv[4], 10)
if (!this.isContentValid(this.content)) {
const iterable = this.content.split("");
for (let i = 0; i < iterable.length; i++) {
const chunk = iterable[i];
if ((chunk != null) && (chunk !== "a")) {
console.log(chunk, i);
}
}
throw new Error("bad content");
}
return callback();
});
}
for doc_and_project_id in process.argv.slice(5)
do (doc_and_project_id) ->
[project_id, doc_id] = doc_and_project_id.split(":")
console.log {project_id, doc_id}
DocUpdaterClient.setDocLines project_id, doc_id, [(new Array(CLIENT_COUNT + 2)).join('a')], null, null, (error) ->
throw error if error?
DocUpdaterClient.getDoc project_id, doc_id, (error, res, body) =>
throw error if error?
if !body.lines?
return console.error "[#{new Date()}] ERROR: Invalid response from get doc (#{doc_id})", body
content = body.lines.join("\n")
version = body.version
isChunkValid(chunk) {
const char = 0;
for (let i = 0; i < chunk.length; i++) {
const letter = chunk[i];
if (letter.charCodeAt(0) !== (65 + (i % 26))) {
console.error(`[${new Date()}] \t[${this.client_id.slice(0,4)}] Invalid Chunk:`, chunk);
return false;
}
}
return true;
}
isContentValid(content) {
for (let chunk of Array.from(content.split('a'))) {
if ((chunk != null) && (chunk !== "")) {
if (!this.isChunkValid(chunk)) {
console.error(`[${new Date()}] \t[${this.client_id.slice(0,4)}] Invalid content`, content);
return false;
}
}
}
return true;
}
}
const checkDocument = function(project_id, doc_id, clients, callback) {
if (callback == null) { callback = function(error) {}; }
const jobs = clients.map(client => cb => client.check(cb));
return async.parallel(jobs, callback);
};
const printSummary = function(doc_id, clients) {
const slot = require('cluster-key-slot');
const now = new Date();
console.log(`[${now}] [${doc_id.slice(0,4)} (slot: ${slot(doc_id)})] ${clients.length} clients...`);
return (() => {
const result = [];
for (let client of Array.from(clients)) {
console.log(`[${now}] \t[${client.client_id.slice(0,4)}] { local: ${client.counts.local_updates }, remote: ${client.counts.remote_updates}, conflicts: ${client.counts.conflicts}, max_delay: ${client.counts.max_delay} }`);
result.push(client.counts = {
local_updates: 0,
remote_updates: 0,
conflicts: 0,
max_delay: 0
});
}
return result;
})();
};
const CLIENT_COUNT = parseInt(process.argv[2], 10);
const UPDATE_DELAY = parseInt(process.argv[3], 10);
const SAMPLE_INTERVAL = parseInt(process.argv[4], 10);
for (let doc_and_project_id of Array.from(process.argv.slice(5))) {
(function(doc_and_project_id) {
const [project_id, doc_id] = Array.from(doc_and_project_id.split(":"));
console.log({project_id, doc_id});
return DocUpdaterClient.setDocLines(project_id, doc_id, [(new Array(CLIENT_COUNT + 2)).join('a')], null, null, function(error) {
if (error != null) { throw error; }
return DocUpdaterClient.getDoc(project_id, doc_id, (error, res, body) => {
let runBatch;
if (error != null) { throw error; }
if ((body.lines == null)) {
return console.error(`[${new Date()}] ERROR: Invalid response from get doc (${doc_id})`, body);
}
const content = body.lines.join("\n");
const {
version
} = body;
clients = []
for pos in [1..CLIENT_COUNT]
do (pos) ->
client = new StressTestClient({doc_id, project_id, content, pos: pos, version: version, updateDelay: UPDATE_DELAY})
clients.push client
const clients = [];
for (let pos = 1, end = CLIENT_COUNT, asc = 1 <= end; asc ? pos <= end : pos >= end; asc ? pos++ : pos--) {
(function(pos) {
const client = new StressTestClient({doc_id, project_id, content, pos, version, updateDelay: UPDATE_DELAY});
return clients.push(client);
})(pos);
}
do runBatch = () ->
jobs = clients.map (client) ->
(cb) -> client.runForNUpdates(SAMPLE_INTERVAL / UPDATE_DELAY, cb)
async.parallel jobs, (error) ->
throw error if error?
printSummary(doc_id, clients)
checkDocument project_id, doc_id, clients, (error) ->
throw error if error?
runBatch()
return (runBatch = function() {
const jobs = clients.map(client => cb => client.runForNUpdates(SAMPLE_INTERVAL / UPDATE_DELAY, cb));
return async.parallel(jobs, function(error) {
if (error != null) { throw error; }
printSummary(doc_id, clients);
return checkDocument(project_id, doc_id, clients, function(error) {
if (error != null) { throw error; }
return runBatch();
});
});
})();
});
});
})(doc_and_project_id);
}